pata_pcmcia: Switch to ata_sff_port_start

PCMCIA doesn't use DMA and as this driver is used on many platforms we
don't want it to fail on those that define the DMA alloc API as a NULL
return

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

drivers/ata/pata_pcmcia.c

@@ -129,7 +129,7 @@ static struct ata_port_operations pcmcia_port_ops = {
 	.irq_on		= ata_irq_on,
 	.irq_ack	= ata_irq_ack,
 
-	.port_start	= ata_port_start,
+	.port_start	= ata_sff_port_start,
 };
 
 #define CS_CHECK(fn, ret) \